The default behavior, when generating parameter names, is to use @p1, @p2, and so on for the various parameters. Passing true for the useColumnsForParameterNames parameter allows you to force the DbCommandBuilder to generate parameters based on the column names instead. . This succeeds only if the following conditions are met:

The ParameterNameMaxLength has been specified and its length is equal to or greater than the generated parameter name.

The generated parameter name meets the criteria specified in the ParameterNamePattern regular expression.